A type of transducerA device for converting energy from one form to another. In ultrasonic testing, conversion of electrical pulses to acoustic waves and vice versa. that generates ultrasoundRefers to sound waves with frequencies above the upper limit of human hearing, typically above 20,000 Hz. Ultrasound is used to determine wall thickness and to … in steel pipe without a coupling medium using magnets and coils, used for inspectionThe systematic process of visually examining, testing, or monitoring pipeline components to assess their condition, integrity, and compliance with regulatory re… of the pipe on inline inspection (ILI)A method used to assess the the integrity and condition of pipelines. It involves the use of specialized tools that are inserted into the pipeline and propelled… tools.